MashimaroNSX said:I don't think ITB's are even street legal. But then again i'd love to have one :biggrin:
MashimaroNSX said:I don't think ITB's are even street legal. But then again i'd love to have one :biggrin:
Cambo said:Why not? M3's have ITB's stock.
Soooooooo pretty. I can only imagine what they sound like. :smile:Chris@SoS said:
spyderplayer2002 said:It's not that the itb's themselves are against emmisions. It's that you usually use them in a race application, and when tuning for a race application it will most likely not come out legal. They bring in soooo much more air which requires soooo much more fuel. This results in an extremely illegal output. I think I got this right.
Hoover said:One of my race cars uses 6 ITB's and the tone is intoxcating to say the least.
Throttle response is increased under acceleration as well as mid-top range hp.
However, you will have a decrease in air velocity on the lower end, so expect a little bogging on a hill. Tuning them isn't diffiuclt, if you know what you're doing with them and have the proper synchronizing tools.
I've seen many of the modern day tuners run into throttle bodies and get completely lost with what should be done. ITB's must be mechanically synchronized and have absolutely nothing to do with laptop tuning initially. Whenever you use any type of ITB, the "tuned" runner length will make or break performance; so be aware of the type of manifold, size of TB and velocity stack you choose. For street application and overall driveability, I'd recommend no larger than 40mm, however I have used straight 45mm TB's but used lower diff. gears to compensate for low end performance.
spyderplayer2002 said:Edit: Here is a picture.
spyderplayer2002 said:It's not that the itb's themselves are against emmisions. It's that you usually use them in a race application, and when tuning for a race application it will most likely not come out legal. They bring in soooo much more air which requires soooo much more fuel. This results in an extremely illegal output. I think I got this right.
spyderplayer2002 said:This is completely off topic but I was reading about the old Mazda 787B race car, and it actually had telescoping itb's for low end response that shortened as the revs went up. Which resulted in a ton of top end power for just four rotors.
ediddynsx said:Just curious if any has any video clips and sounds of their nsx with itb's? (itb = individual throttle bodys)
I am curious of how loud it is for street use. Thanks. :smile: